Actual problems of Mathematics, Physics and Mecanics
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Actual problems of Natural Sciences
COMPLEX FORMATION IN THE SYSTEM POLYAMPHOLYTE - Ni2+, Co2+, Cu2+, Zn2+, Cr3+ -WATER
The complex-forming properties of polycomplexons including ions of amino and amino- phosphon groups obtained on the basis of local raw materials with Cu (II), Ni (II), Co (II), Zn (II) and Cr (III) were analyzed. The process of sorption of metal ions into ion exchangers was studied in the...
3 August 2022, 21:50
SYNTHESIS AND ANALYSIS OF COPPER(II) ION COORDINATION COMPOUND WITH KETOROLAC AND CARBAMIDE
Nowadays, great amount of interest in the development of methods for the synthesis of metallocomplex compounds of biologically active compounds available in the world with 3d metals and in determining their physicochemical properties is steadily increasing. These compounds are actual for their use...
3 August 2022, 21:50
HETEROPTERAN BUGS AND DEVELOPING PERIODS OF EURYGASTER INTEGRICEPS PUTON ON WHEAT CROP IN NORTH - WESTERN UZBEKISTAN
The present study was conducted to study the true bugs diversity on a wheat crop; the specimens were collected from wheat crop adjacent to the private farm at Chalish district 15th February to 15th of June 2022. In present study total 5 insect pest species were discovered under order of Hemiptera,...
3 August 2022, 21:50
BIOECOLOGY AND CULTIVATION TECHNOLOGY OF CALENDULA (CALENDULA OFFICINALIS).
This article discusses the agrotechnology, bioecology, medicinal properties and cultivation of calendula officinalis in the light gray soils of Andijan region and its use in folk medicine....
3 July 2022, 21:59
INTRASPECIFIC BIODIVERSITY OF G.HIRSUTUM L., G.BARBADENSE L. AND HAIRINESS OF SEEDS OF INITIAL MATERIALS IN G.DARWINII WATT SPECIES AND EPIDERMAL SURFACE ANALISYS PLANTS.
The character management of wild, ruderal and cultivated tropical diverse plants found in nature is particularly dependent on genetic information. The variability that occurs during the growing season of a plant depends on external environmental factors. Therefore, it is assumed that artificial...
3 July 2022, 21:59
SENNA AСUTIFOLIA DEL. METHODS OF GENERATIC REPRODUCTION OF PLANTS
The demand of the pharmaceutical industry in Uzbekistan for raw materials for medicinal plants is growing day by day. Such objects include Senna aсutifolia Del., medicinal nail polish, medicinal chamomile, namatak, valerian, hawthorn, barberry and others. Among them, the Senna aсutifolia Del. is...
3 July 2022, 21:59
SALVIA OFFICINALIS L. METHODS OF GENERATIC REPRODUCTION OF PLANTS
The demand of the pharmaceutical industry in Uzbekistan for raw materials for medicinal plants is growing day by day. Such objects include medicinal salvia, medicinal nail polish, medicinal chamomile, namatak, valerian, hawthorn, barberry and others. Among them, the Salvia officinalis L. is widely...
3 July 2022, 21:59
SYNTHESIS OF THE 1, 2- PHENYLEN DIKARBOXYMETHYLENTARTRATE
The article presents the results of the study of the reaction of the sodium salt of tartaric acid dichloracetyl pyrocatechole in presence of dimethylformamide and dimethylsulfokside. The experiments attained the best exposures in the presence of dimethylformamide. The structure of the obtained...
3 May 2022, 21:59
SYNTHESIS AND NMR SPECTROSCOPIC STUDY OF HYDRAZONE DERIVATIES OF FERROCENOYLACETONE AND THEIR COMPLEXES
We obtained β-diketone – ferrocenoylacetone by Kleisen condensation. Hydrazones of monocarboxylic acids (H2L) were synthesized by the interaction of hydrazides of carboxylic acids with ferrocenoylacetone. On their basis, complexes with transition metals were obtained. The synthesized compounds were...
3 May 2022, 21:59
PARA-[DI-1,4-(4,4,4-TRIFLUOROBUTANDION-1,3)]-BENZENE THYOSEMICARBASE AND SYNTHESIS OF COMPLEX COMPOUNDS ON THE BASIS
In this article, para-[di-1,4-(4,4,4-trifluorobutanedione-1,3)]-benzene the reaction with thiosemicarbazide, the structure of the synthesized tridentate ligand, tautomeric form, the structure of complex compounds formed with intermediate metal ions UV-, IR spectroscopy studied and analyzed....
3 May 2022, 21:59